HP Compaq dc7900 USDT Technical Reference Manual page 21

Analog Mon.
Digital Mon.
PCI Express
x16 slot (PEG) [2]
SATA
Hard Drive
Additional
SATA
Devices
AD1884A
Subsystem
Notes:
[1] 2 SATA ports in USDT, 3 SATA ports in SFF, 4 SATA ports in CMT, and 1 eSATA port in SFF and CMT.
[2] SFF and CMT only
[3] 0 slots in USDT, 1 or 2 slots in SFF, 3 slots in CMT
[4] 1 MiniCard slot in USDT, 1 slot in SFF and CMT
[5] 8 ports accessible externally, 2 ports accessible internally
Figure 2-2. HP Compaq dc7900 Business PC Architecture, Block diagram
Technical Reference Guide
VGA
DisplayPort
Graphics
Cntlr.
Switch
SATA
SATA SATA
I/F [1]
SATA/eSATA
Audio
Audio I/F
NIC
I/F
Intel
Processor
800/1066/1333-MHz FSB
SDRAM
Q45
Cntlr
GMCH
DMI
DMI
USB
I/F
82801
ICH10
LPC I/F
PCI Cntlr.
PCI 2.3 slots [3]
PCIe x1 slots [4]
PCIe x4 (x16 conn.) [2]
Power Supply
www.hp.com
System Overview
Ch A DDR2
SDRAM
Ch B DDR2
SDRAM
USB 2.0
Ports (10) [5]
Serial I/F [2] Parallel I/F [2]
SIO Controller
Kybd-Mouse I/F Diskette I/F [2]
Diskette [2]
Keyboard
Mouse
2-5